Workers are scamming their employers using AI-generated fake expense receipts

Workers are increasingly using AI tools to create fake expense receipts that are nearly impossible to detect by human reviewers. AI-generated fraudulent expenses jumped from 0% in 2024 to 14% of all fraudulent documents by September 2025, with one fintech firm flagging over $1 million in fake invoices in just 90 days. These sophisticated fakes are forcing companies to invest in specialized detection software and metadata analysis to combat the growing fraud problem.